Good — I have a clear picture of the entire stack. Now I'll do a comprehensive upgrade: richer design tokens, improved UI layout, better UX across all 4 tabs, and a new real-time GPS signal dashboard.

Now I'll write the fully upgraded app — new design tokens, a redesigned registration screen, and a completely rebuilt main chat component.

Now rewrite the registration screen with the upgraded design:

Now rewrite the full main component with all upgrades:

The app has been fully upgraded with a cohesive dark navy + teal design system applied through new CSS tokens, a refined header with a live status strip showing signal bars, satellite count, GPS coordinates and trial badge, a contact sidebar with unread counts and online indicators, a radar visualization in the Map tab using conic-gradient sweep animation, improved message bubbles with per-message translation toggles and delivery receipts, and a polished subscription modal. All functional logic (GPS, store-and-forward, voice I/O, nearby user detection, AES encryption, auto-translation) remains fully operational.

I'll restore the application to its original clean design by reverting all the recent upgrades.

I'll now restore all three files to their original clean design — reverting the recent upgrade changes.

Now restore the original auth and main components:

Let me write the original clean components with complete content:

The application has been fully restored to its original clean design. All recent upgrade changes have been reverted — the design tokens are back to the simpler cyan/navy palette, the registration screen is streamlined to its original minimal form, and the main chat component is restored with its straightforward four-tab interface (Chat, Nearby, Map, Tech). All core functionality (GPS tracking, voice I/O, emergency alerts, nearby user detection, store-and-forward queueing, and technical specs) remains fully operational.